One of the first stages in analysing FLEXlm is to crack the encryption used to package it. FLEXcrypt is produced by Globetrotter Software Inc. And seems to share may commonalities with FLEXlm. This document analyses the FLEXcrypt en/de-cryption program to a stage that allows decryption of any FLEXcrypted package.

Language selector: [ ] [ ] VENDORCODE structures known FLEXlm data (data/software list) [ 28-Oct-2007 18:07 / 01-Jan-2011 05:10 ] Below is a table of known data (fields) of VENDORCODE ( VC) structures for FLEXlm ( FLEXlm License Manager) and FLEXnet ( FLEXnet License Manager) to corresponding software. Table consists of following values from structure: VENDOR_KEY2, VENDOR_KEY3, VENDOR_NAME ( VN). This information is enough for identifying software (and not only for identify). ENCRYPTION_SEED1, ENCRYPTION_SEED2, VENDOR_KEY1, VENDOR_KEY4, VENDOR_KEY5, lm_prikey (private keys) values also available if required. If you have your own dumps of VENDORCODE structures or any other information (including information about FLEXlm or FLEXnet data for specific software), send them in to add to the collection.

In order to dump (retrieve) information from your FLEXlm or FLEXnet license,. To search values of VENDORCODE structures or software in the list, please use 'Ctrl + F' keys combination.

Each one of this VENDORCODE structures can be used with.

In this tutorial you will learn how to crack any type of software protection using W32Dasm and HIEW. IDENTIFYING THE PROTECTION: Run the program, game, etc., (SoftwareX) that you want to crack without the CD in the CD reader. SoftwareX will not run of course, however, when the error window pops up it will give you all of the vital information that you need to crack the program, so be sure to write down what it says. CRACKING THE PROTECTION: Now, run Win32Dasm. On the file menu open DISASSEMBLER > OPEN FILE TO DISASSEMBLE. Select SoftwareX’s executable file in the popup window that will appear (e.g. Counter strike 16 cheat wallhack.

W32Dasm may take several minutes to disassemble the file. When W32Dasm finishes disassembling the file it will display unrecognizable text; this is what we want.

Casio cz sysex patches clarence. Click on the String Data References button. Scroll through the String Data Items until you find SoftwareX’s error message.

When you locate it, double click the error message and then close the window to return to the Win32Dasm text. You will notice that you have been moved somewhere within the SoftwareX’s check routine; this is where the error message in generated. Now comes the difficult part, so be careful. To crack SoftwareX’s protection you must know the @offset of every call and jump command. Write down every call and jump @offset number that you see (You have to be sure, that the OPBAR change its used color to green). You need the number behind the @offset without the “h.” Now open HIEW, locate SoftwareX’s executable, and press the F4 key. At this point a popup window will appear with 3 options: Text, Hex, and Decode.

Click on “Decode” to see a list of numbers. Now press the F5 key and enter the number that was extracted using Win32Dasm.

After you have entered the number you will be taken to SoftwareX’s check routine within HIEW. If the command that you are taken to is E92BF9BF74, for example, it means that the command equals 5 bytes. Every 2 digits equal one byte: E9-2B-F9-BF-74 => 10 digits => 5 bytes.

If you understood this then you can continue. Press F3 (Edit), this will allow you to edit the 10 digits. Replace the 5 bytes with the digits 90. In other words, E92BF9BF74 will become (90-90-90-90-90).

After you complete this step press the F10 key to exit. You just cracked SoftwareX! Don’t panic if SoftwareX will not run after you finished cracking it. It only means that something was done incorrectly, or perhaps SoftwareX’s protection technology has been improved or created after this tutorial.